Question

1. consider the angle measures of trapezoid qrst.

angle measure
q 90°
r 117°
s 63°
t 90°
if trapezoid qrst is graphed on the coordinate plane and reflected across the y - axis to form trapezoid wxyz, which two statements are true?
a the measure of angle w is 90°.
b the measure of angle w is 117°.
c the measure of angle x is 63°.
d the measure of angle x is 90°.
e the measure of angle z is 90°.

Explanation:

When a figure is reflected across the y - axis, the angle measures remain the same. Angle Q in trapezoid QRST corresponds to angle W in trapezoid WXYZ, and angle Q = 90°, so angle W = 90°. Angle S in trapezoid QRST corresponds to angle X in trapezoid WXYZ, and angle S = 63°, so angle X = 63°.

Answer:

A. The measure of angle W is 90°.
C. The measure of angle X is 63°.